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https://github.com/FFmpeg/FFmpeg.git
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9481802539
Formats ARGB32, XRGB32, ABGR32, and XBGR32 were added to V4L2 instead of ill-defined deprecated RGB32/BGR32 pixel formats. When pixel format is not specified explicitly FFmpeg tries formats in order in which they are stored in the table. Therefore formats are sorted as follows: BGR is preferred over RGB and XBGR is preferred over ARGB, because it could give better performance by ignoring alpha component.
112 lines
4.6 KiB
C
112 lines
4.6 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "v4l2-common.h"
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const struct fmt_map ff_fmt_conversion_table[] = {
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//ff_fmt codec_id v4l2_fmt
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{ AV_PIX_FMT_YUV420P, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_YUV420 },
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{ AV_PIX_FMT_YUV420P, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_YVU420 },
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{ AV_PIX_FMT_YUV422P, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_YUV422P },
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{ AV_PIX_FMT_YUYV422, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_YUYV },
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{ AV_PIX_FMT_UYVY422, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_UYVY },
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{ AV_PIX_FMT_YUV411P, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_YUV411P },
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{ AV_PIX_FMT_YUV410P, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_YUV410 },
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{ AV_PIX_FMT_YUV410P, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_YVU410 },
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{ AV_PIX_FMT_RGB555LE,AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_RGB555 },
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{ AV_PIX_FMT_RGB555BE,AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_RGB555X },
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{ AV_PIX_FMT_RGB565LE,AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_RGB565 },
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{ AV_PIX_FMT_RGB565BE,AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_RGB565X },
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{ AV_PIX_FMT_BGR24, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_BGR24 },
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{ AV_PIX_FMT_RGB24, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_RGB24 },
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#ifdef V4L2_PIX_FMT_XBGR32
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{ AV_PIX_FMT_BGR0, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_XBGR32 },
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{ AV_PIX_FMT_0RGB, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_XRGB32 },
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{ AV_PIX_FMT_BGRA, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_ABGR32 },
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{ AV_PIX_FMT_ARGB, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_ARGB32 },
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#endif
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{ AV_PIX_FMT_BGR0, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_BGR32 },
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{ AV_PIX_FMT_0RGB, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_RGB32 },
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{ AV_PIX_FMT_GRAY8, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_GREY },
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#ifdef V4L2_PIX_FMT_Y16
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{ AV_PIX_FMT_GRAY16LE,AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_Y16 },
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#endif
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{ AV_PIX_FMT_NV12, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_NV12 },
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{ AV_PIX_FMT_NONE, AV_CODEC_ID_MJPEG, V4L2_PIX_FMT_MJPEG },
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{ AV_PIX_FMT_NONE, AV_CODEC_ID_MJPEG, V4L2_PIX_FMT_JPEG },
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#ifdef V4L2_PIX_FMT_H264
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{ AV_PIX_FMT_NONE, AV_CODEC_ID_H264, V4L2_PIX_FMT_H264 },
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#endif
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#ifdef V4L2_PIX_FMT_MPEG4
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{ AV_PIX_FMT_NONE, AV_CODEC_ID_MPEG4, V4L2_PIX_FMT_MPEG4 },
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#endif
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#ifdef V4L2_PIX_FMT_CPIA1
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{ AV_PIX_FMT_NONE, AV_CODEC_ID_CPIA, V4L2_PIX_FMT_CPIA1 },
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#endif
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#ifdef V4L2_PIX_FMT_SRGGB8
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{ AV_PIX_FMT_BAYER_BGGR8, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_SBGGR8 },
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{ AV_PIX_FMT_BAYER_GBRG8, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_SGBRG8 },
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{ AV_PIX_FMT_BAYER_GRBG8, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_SGRBG8 },
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{ AV_PIX_FMT_BAYER_RGGB8, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_SRGGB8 },
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#endif
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{ AV_PIX_FMT_NONE, AV_CODEC_ID_NONE, 0 },
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};
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uint32_t ff_fmt_ff2v4l(enum AVPixelFormat pix_fmt, enum AVCodecID codec_id)
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{
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int i;
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for (i = 0; ff_fmt_conversion_table[i].codec_id != AV_CODEC_ID_NONE; i++) {
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if ((codec_id == AV_CODEC_ID_NONE ||
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ff_fmt_conversion_table[i].codec_id == codec_id) &&
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(pix_fmt == AV_PIX_FMT_NONE ||
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ff_fmt_conversion_table[i].ff_fmt == pix_fmt)) {
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return ff_fmt_conversion_table[i].v4l2_fmt;
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}
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}
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return 0;
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}
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enum AVPixelFormat ff_fmt_v4l2ff(uint32_t v4l2_fmt, enum AVCodecID codec_id)
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{
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int i;
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for (i = 0; ff_fmt_conversion_table[i].codec_id != AV_CODEC_ID_NONE; i++) {
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if (ff_fmt_conversion_table[i].v4l2_fmt == v4l2_fmt &&
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ff_fmt_conversion_table[i].codec_id == codec_id) {
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return ff_fmt_conversion_table[i].ff_fmt;
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}
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}
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return AV_PIX_FMT_NONE;
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}
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enum AVCodecID ff_fmt_v4l2codec(uint32_t v4l2_fmt)
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{
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int i;
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for (i = 0; ff_fmt_conversion_table[i].codec_id != AV_CODEC_ID_NONE; i++) {
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if (ff_fmt_conversion_table[i].v4l2_fmt == v4l2_fmt) {
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return ff_fmt_conversion_table[i].codec_id;
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}
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}
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return AV_CODEC_ID_NONE;
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}
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